Journal ArticleDOI
Ecological risk assessment and source identification for heavy metals in surface sediment from the Liaohe River protected area, China
TLDR
The metal speciation analysis indicated that Cd, Pb and Zn were dominated by non-residual fractions and have high mobility and bioavailability, indicating significant anthropogenic sources.About:
This article is published in Chemosphere.The article was published on 2017-05-01. It has received 358 citations till now.read more
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Source apportionment of heavy metals in agricultural soil based on PMF: A case study in Hexi Corridor, northwest China
TL;DR: The results showed that the average concentrations of Cr, Cu, Ni, Pb and Zn were lower than the secondary standard of soil environmental quality; however, the concentrations of eight metals were higher than background values, and their corresponding enrichment factor values were significantly greater than 1.
Journal ArticleDOI
Heavy metal fractions and ecological risk assessment in sediments from urban, rural and reclamation-affected rivers of the Pearl River Estuary, China
TL;DR: The redundancy analysis (RDA) revealed that both urbanization and reclamation processes would cause similar metallic characteristics, and sediment organic matter (SOC) might be the prominent influencing factor.
Journal ArticleDOI
Assessment of heavy metal contamination, distribution and source identification in the sediments from the Zijiang River, China.
TL;DR: The results indicated that the mean values of heavy metals in the Zijiang River's sediments were found to be significantly higher than the corresponding background values, and tended to occasionally pose harmful impacts on the ecosystem.
Journal ArticleDOI
Carcinogenic and Non-carcinogenic Risk Assessment of Heavy Metals in Groundwater Wells in Neyshabur Plain, Iran.
Hossein Najafi Saleh,Maryam Panahande,Mahmood Yousefi,Farzaneh Baghal Asghari,Gea Oliveri Conti,Elham Talaee,Ali Mohammadi +6 more
TL;DR: Considering the toxic effect of some elements, including Pb and As, in the chronic exposure of consumers, it is suggested a continuous evaluation and monitoring of drinking water resources.
Journal ArticleDOI
Indices of soil contamination by heavy metals - methodology of calculation for pollution assessment (minireview).
TL;DR: Based on the comparison of metal concentrations in soil-selected sites of the world and used indices of pollution or contamination in soils, the concentration of heavy metal in contaminated soils varied widely, and pollution indices confirmed the significant contribution of soil pollution from anthropogenic activities mainly in urban and industrial areas.
References
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Sequential extraction procedure for the speciation of particulate trace metals
TL;DR: In this paper, an analytical procedure involving sequential chemicai extractions was developed for the partitioning of particulate trace metals (Cd, Co, Cu, Ni, Pb, Zn, Fe, and Mn) into five fractions: exchangeable, bound to carbonates, binding to Fe-Mn oxides and bound to organic matter.
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An ecological risk index for aquatic pollution control.a sedimentological approach
TL;DR: In this article, a sedimentological risk index for toxic substances in limnic systems should at least, account for the following four requirements: the following: the quality of the sediment, the water quality, the sediment quality, and the sediment diversity.
Journal ArticleDOI
Development and evaluation of consensus-based sediment quality guidelines for freshwater ecosystems.
TL;DR: It was concluded that the consensus-based SQGs provide a reliable basis for assessing sediment quality conditions in freshwater ecosystems.
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Application of principal component analysis for the estimation of source of heavy metal contamination in surface sediments from the Rybnik Reservoir.
Krzysztof Loska,Danuta Wiechuła +1 more
TL;DR: The variability of the bottom sediment loading with metals during the investigations was affected in the first place by changes in the concentration of iron, but also those elements whose concentrations in the top sediment were elevated compared to the concentrations in shale--cadmium, nickel and lead.
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Studies on distribution and fractionation of heavy metals in Gomti river sediments—a tributary of the Ganges, India *
TL;DR: In this paper, the authors examined the distribution of heavy metals in sediments and the partitioning of their chemical species between five geochemical phases (exchangeable fraction, carbonate fraction, Fe/Mn oxide fraction, and organic fraction) using Tessier's analytical sequential extraction technique.